This ETF offers exposure to Treasuries towards the longer end of the maturity spectrum, 10-20 years, presenting another tool to investors looking to fine tune their fixed income exposure. TLH probably doesn't belong as a core holding in a long-term portfolio, as most of the underlying securities are already included in broad-based funds such as AGG or BND. But for investors looking to lengthen the effective duration of a short-heavy fixed income section of a portfolio, TLH can be a very useful tool to enhance current returns by the addition of additional interest rate risk. TLH is efficient from a cost perspective, and offers sufficient liquidity as well. There are few funds offering identical exposure, though those seeking general access to long-term Treasuries can choose from a number of different ETFs, including VGLT and TLO.